Thesis Abstract

Abstract
Microplastics, small plastic particles less than 5mm in size, have become a significant environmental concern globally due to their widespread presence and potential adverse effects on ecosystems. This thesis aims to investigate the impact of microplastics on freshwater ecosystems, focusing on understanding their distribution, abundance, and ecological implications. The study will utilize a combination of field surveys, laboratory analyses, and ecological assessments to evaluate the extent of microplastic contamination in freshwater environments and assess its effects on aquatic organisms and ecosystem health. Chapter One provides an introduction to the research topic, highlighting the background of the study, problem statement, objectives, limitations, scope, significance, structure of the thesis, and definition of key terms. The literature review in Chapter Two presents a comprehensive overview of existing research on microplastics in freshwater ecosystems, including their sources, transport mechanisms, ecological impacts, and management strategies. Chapter Three details the research methodology, outlining the sampling techniques, laboratory analyses, data collection procedures, and statistical methods employed in the study. The chapter also discusses the selection of study sites, sample collection protocols, and quality control measures to ensure the reliability and validity of the research findings. Chapter Four presents a detailed discussion of the research findings, including the distribution patterns of microplastics in freshwater environments, their interactions with biota, and the potential ecological consequences of their presence. The chapter examines the effects of microplastics on aquatic organisms, food webs, and ecosystem processes, highlighting the need for proactive management strategies to mitigate their impact on freshwater ecosystems. Chapter Five concludes the thesis by summarizing the key findings, discussing their implications for environmental management and policy, and suggesting future research directions. The study underscores the urgent need for greater awareness, monitoring, and mitigation efforts to address the growing threat of microplastics to freshwater ecosystems and safeguard water quality and biodiversity. In conclusion, this thesis contributes to the growing body of knowledge on microplastics in freshwater ecosystems and provides valuable insights into their environmental significance and ecological consequences. By advancing our understanding of the impact of microplastics on aquatic environments, this research aims to inform evidence-based decision-making and promote sustainable management practices to protect freshwater ecosystems for future generations.

Thesis Overview